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Related Concept Videos

Overview of Cell Signaling01:23

Overview of Cell Signaling

Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate with the environment.
Cells respond to many types of information, often through receptor proteins positioned on the membrane. For example, skin cells respond to and transmit touch...
Overview of Cell Signaling01:23

Overview of Cell Signaling

Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate with the environment.
Cells respond to many types of information, often through receptor proteins positioned on the membrane. For example, skin cells respond to and transmit touch...
What is Cell Signaling?02:03

What is Cell Signaling?

Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate to respond to the environment.
What is Cell Signaling?02:03

What is Cell Signaling?

Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate to respond to the environment.
Chemical Signaling in the Endocrine System01:08

Chemical Signaling in the Endocrine System

A signaling cascade is a series of events that facilitates the transmission of information within or between cells, culminating in a targeted response in the recipient cell. As chemical messengers, hormones are pivotal in initiating and modulating these intricate signaling cascades based on their solubility.
Lipid-soluble hormones, such as steroid hormones, demonstrate an intracellular action. These hormones traverse cell membranes due to their lipid nature. Once inside the target cell, they...
Intracellular Signaling Cascades01:24

Intracellular Signaling Cascades

Once a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. The continuation of a signal in this manner is called signal transduction. Signal transduction only occurs with cell-surface receptors, which cannot interact with most components of the cell, such as DNA. Only internal receptors can interact directly with DNA in the nucleus to initiate protein synthesis. When a ligand binds to its receptor, conformational changes occur that affect the...

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Related Experiment Video

Updated: Jun 6, 2026

The Power of Simplicity: Sea Urchin Embryos as in Vivo Developmental Models for Studying Complex Cell-to-cell Signaling Network Interactions
07:34

The Power of Simplicity: Sea Urchin Embryos as in Vivo Developmental Models for Studying Complex Cell-to-cell Signaling Network Interactions

Published on: February 16, 2017

Cell signaling.

Jameel Iqbal1, Mone Zaidi, Narayan G Avadhani

  • 1Department of Animal Biology, University of Pennsylvania Veterinary School, Philadelphia, Pennsylvania, USA. drjamesiqbal@gmail.com

Annals of the New York Academy of Sciences
|November 11, 2010
PubMed
Summary
This summary is machine-generated.

Cellular signaling exhibits dynamic behaviors, including stochasticity and feedback loops, which generate diversity and regulate cellular responses. Understanding these dynamic processes is crucial for deciphering complex biological functions.

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Last Updated: Jun 6, 2026

The Power of Simplicity: Sea Urchin Embryos as in Vivo Developmental Models for Studying Complex Cell-to-cell Signaling Network Interactions
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Identification of Intracellular Signaling Events Induced in Viable Cells by Interaction with Neighboring Cells Undergoing Apoptotic Cell Death
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Identification of Intracellular Signaling Events Induced in Viable Cells by Interaction with Neighboring Cells Undergoing Apoptotic Cell Death

Published on: December 27, 2016

Area of Science:

  • Cellular and Molecular Biology
  • Systems Biology
  • Biochemistry

Background:

  • Cellular signaling pathways are complex and involve numerous molecular interactions.
  • Dynamic properties of signaling are increasingly recognized as critical for cellular function.
  • Traditional views often overlook the dynamic aspects of signaling processes.

Purpose of the Study:

  • To review recent advances in understanding dynamicism in cellular signaling.
  • To highlight key mechanisms contributing to signaling diversity and regulation.
  • To emphasize the importance of dynamic signaling in biological contexts.

Main Methods:

  • Literature review of recent research in cellular signaling.
  • Analysis of emerging concepts such as stochasticity and feedback.
  • Synthesis of findings related to protein phosphorylation and gene expression dynamics.

Main Results:

  • Stochasticity generates diversity in signaling responses.
  • Population desynchronization can mask important signaling dynamics.
  • Feedback loops and scaffolding proteins play key roles in signal regulation.
  • Frequency-responsive transcriptional regulation exemplifies dynamic signaling.

Conclusions:

  • Dynamicism is a fundamental aspect of cellular signaling.
  • Understanding these dynamic features provides new insights into cellular behavior.
  • Further research into dynamic signaling mechanisms is warranted.